Home / 1,034.26-1,427.70-719.98

Finding the Fourth Proportional to 1,034.26, 1,427.70 and 719.98

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Solution

The fourth proportional to 1,034.26, 1,427.70 and 719.98 is: 993.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,034.26 : 1,427.70 = 719.98 : x
  2. Step 2: Convert to fraction form
    1,034.26/1,427.70 = 719.98/x
  3. Step 3: Cross multiply
    1,034.26x = 1,427.70 × 719.98
  4. Step 4: Simplify right side
    1,034.26x = 1,027,915.45
  5. Step 5: Solve for x
    x = 1,027,915.45/1,034.26
  6. Step 6: Final answer
    x = 993.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.